Traxxas 7 Cell 3300 Mah Hump Pack w/Trx Connector Trendy exterior wrapping Will maximize performance in Traxxas models Includes Traxxas High-Current Connecters for consistent, reliable and efficient power transfer Flexible silicone insulation on 12-gauge wires designed to resist wear while allowing easy installation Tough construction to endure high-current output Premium-quality high-capacity, high-voltage, low-resistance cells for extended run time and power